20890734

素因数分解:

$2^1\times 3^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{331}}^1$

素因数の和:560

約数の個数: 32

約数和(自身を含む): 42804096

約数和(自身を除く): 21913362

約数列:

[1, 2, 3, 6, 67, 134, 157, 201, 314, 331, 402, 471, 662, 942, 993, 1986, 10519, 21038, 22177, 31557, 44354, 51967, 63114, 66531, 103934, 133062, 155901, 311802, 3481789, 6963578, 10445367, 20890734]

約数ペア:

[(1, 20890734), (2, 10445367), (3, 6963578), (6, 3481789), (67, 311802), (134, 155901), (157, 133062), (201, 103934), (314, 66531), (331, 63114), (402, 51967), (471, 44354), (662, 31557), (942, 22177), (993, 21038), (1986, 10519)]